pickknuckle down . knuckle down See: BUCKLE DOWN. No categories: add yours Source: A Dictionary of American Idioms 'knuckle down' on video Jolene - Dolly Parton (acoustic cover) Knuckle Down Knuckle Down (2001 Remaster) Man Man - "Knuckle Down" Sasquatch - Knuckle Down (2004) sort: relevance, mode: exact match, q: "knuckle down", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Post my comment